tree 5001522f18092e1cafb538a74eedae3087c17145
parent 70aee2f153972f70fad5f7025134fec063f9efbe
author Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1245749443 +0300
committer Artem Bityutskiy <Artem.Bityutskiy@nokia.com> 1246808716 +0300

UBIFS: slightly optimize write-buffer timer usage

This patch adds the following minor optimization:

1. If write-buffer does not use the timer, indicate it with the
   wbuf->no_timer variable, instead of using the wbuf->softlimit
   variable. This is better because wbuf->softlimit is of ktime_t
   type, and the ktime_to_ns function contains 64-bit multiplication.

2. Do not call the 'hrtimer_cancel()' function for write-buffers
   which do not use timers.

3. Do not cancel the timer in 'ubifs_put_super()' because the
   synchronization function does this.

This patch also removes a confusing comment.

Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>